There are many acroymns and [[Abbreviations Found in Genealogy Records|abbreviated words]] unique to genealogy and family history research that may not be easily found in any other industry's terminology. Here are some of the more commonly used acronyms and abbreviations: <br>
:Before. The date is known to be before the specified date, e.g. "Bef 1930".
:Births, Marriages, and Deaths; sometimes written BDM.
:Calculated. The date was calculated from a source. If you can only calculate, for example, a birth/marriage date based upon a census or the birth date based upon the death date, e.g. "Cal 1854".
:[http://www.dupinternational.org/ International Society Daughters of the Utah Pioneers]; Lineage society for female descendants of early Utah settlers. Sponsors Pioneer Memorial Museum, and Pioneer Histories Digitization Project.
:Estimated. The date was estimated based upon family stories / traditions / standard genealogical estimations, e.g. "Est 1848". Standard genealogical standards include: man marrying at 25, woman marrying at 21, first child one year after marriage, and subsequent children every two years. For example, marriage in 1825, would give the husband's birth "Est 1800", wife's birth "Est 1804", first child's birth "Est 1826", second child's birth "Est 1828", etc.
:Temple Records Index Bureau, a card-file index system maintained from 1927-1970 containing references to births, christenings and marriages for deceased (dating from 1500) and living persons (to 1970). The TIB was replaced by the CFI (later the [[International Genealogical Index (IGI)|IGI]]).
External Links ===
*Common Genealogical Acronyms -'''http://austega.com/familyhistory/courses/acronyms.htm'''
*There are also books which give the definitions of many abbreviated words. One such book is "'''[http://www.familysearch.org/Eng/Library/fhlcatalog/supermainframeset.asp?display=titledetails&titleno=1123166&disp=Abbreviations+&+acronyms&columns=*,0,0 ''Abbreviations & Acronyms: a guide for family historians'']'''" compiled by Kip Sperry (FHL book US/Can 929.103Sp37a.)
*Use a Title search for "abbreviations" in the Family History Library Catalog found on the '''www.familysearch.org''' website for other books which define abbreviations and acronyms such as: '''[http://www.familysearch.org/Eng/Library/fhlcatalog/supermainframeset.asp?display=titledetails&titleno=981218&disp=Acronyms,+initialisms,+and+abbreviat&columns=*,0,0 ''Acronyms, Initialisms, and Abbreviations Dictionary: a guide to acronyms, abbreviations, contractions, alphabetic symbols, and similar condensed appellations'']''' by Jennifer Mossman (FHL book US/Can 428.1 M855a v.1 pt.1 1995.)